Combined spring and lock hinge.



katented July 19, 1904.

UNITED STATES PATENT OEEICE.

WILLIAM F. BADING, OF GRAND HAVEN, MICHIGAN.

COMBINED SPRING AND LOCK HINGE. v

SPECIFICATION forming part of Letters Patent No. 765,372, dated July19,- 1904.

Application filed December 3, 1903. Serial No. 183,546. (No model.)

To aU, whom, t 'may concern.'

Be it known that I, WILLIAM F. BADING, a citizen of the United States,residing at Grand Haven, in the county of Ottawa and State of Michigan,have invented a new and Improved Combined Spring and Lock Hinge, ofwhich the following is a speciiication.

My invention relates to spring-hinges; and the objects of my improvementare to provide a hingev that will hold a door in either the closed oropen positions, that will close the door when partially opened and thenreleased, and that can be easily and cheaply constructed. I attain theseobjects by the construction illustrated in the accompanying drawings, inwhich- Figure 1 is a front view of the hinge in the position assumedwhen holding the door closed. Fig. 2 is a view of the hinge when holdingthe door open. Fig. 3 is an end view of the hinge in this position.Figs. 5 and 7 are details, and Figs. 4 and 6 are modifications.

Similar reference characters refer to like parts throughout the variousviews.

The .two leaves A and B of the hinge .are connected by the bolt or pinC, having a solid upper head D and the nut E on its lower end. The leafA has lugs F and Gr, while the leaf B has lugs H and I. The lug H isprovided with a tongue 7L, which enters the notches lo at the upper endof the grooves L in the collar K on the pin, as shown in Figs. 1 and 2.These grooves receive the upper end of the spiral spring M. The lowerend of this spring enters the groove a of the collar N. This collar isprovided with a tongue 0, which will enter into either of the notches c'or c" in the lug I of the leaf B. The jaws O on this collar engage theiiange P on the leaf A and prevent the collar from turning. Ordinarilythe spring will be found sufficient for both closing the door andholding it either in the open or closed position-that is, for holdingthe tongue 0 in either of the notches e' or f1'. It may be desirable,however, to have a special spring for the latter purpose, and in suchcases I provide the spring R inside of the coil of spring M, whichspring R merely presses down'the collar N.

The torsion of the spring M may be adjustby the lugs O' of the collarN2, as shown in Fig. 6. The spring R may be used or omitted, as desired.

W hen the door is closed, the spring M or the two springs M and R willhold the tongue 0 of the collar N in the notch c', thus preventing anyangular motion between collar N and lug I or between the two leaves ofthe hinge. By forcibly opening the door the incline of the tongue willbe caused to ride up on the.

incline of the notch. If the door is carried far enough for the tongue 0and notch c" to register, the tongue will be forced into this notch andthe door held open until suiiicient force is brought to bear to forcethe tongue out of the notch. When the door is in a positionintermediatethe open and closed positions, the springM will tend to close the doorin the usual manner.

Having now explained my improvement, what I claim as my invention,-anddesire to secure by Letters Patent, is-

l. In a spring-hinge, the combination of leaves having lugs, a pinconnecting said lugs, a spring on said pin between said lugs, a collaron said pin at one end of said spring having a ratchet connection withthe adjacent lug whereby the tension of said spring may be adjusted, anda second collar at the other end of the spring having a tongue to engageslots in the adjacent lug of one leaf, said collar having jaws to engagethe other leaf.

2. In a spring-hinge, the combination of leaves having lugs, a pinconnecting said lugs, a spring-on said pin between the lugs, a collar onsaid pin at one end of said spring having a ratchet connection with theadjacent lug whereby the tension of said spring may be adjusted, asecond collar at the other end of the spring having a tongue to engageslots in the adjacent lug of one leaf said collar having jaws toslidably engage the other leaf, said spring tending to return the leavesvto normal position, and a second spring on said pin to press the tongueof said collar into the grooves in the adjacent lug and thereby hold theleaves in predetermined positions.

3. In a spring-hinge, the combination with the leaves adapted to bepivotally united, each of said leaves having tubular lugs or knuckles,of a pin connecting said lugs, two collars on said pin, a springconnecting said collars, one of said collars having a ratchet connectionwith a lug on one leaf, the second collar having a tongue to enter anotch in a second lug of said leaf when said leaves are flat and enter asecond notch in said lug when said leaves are at an angle to each other,and means to prevent angular movement between said second collar and thesecond leaf of the hinge.

In testimony whereof I have signed my name to this specification in thepresence of tworsubscribing Witnesses.

WILLIAM F. BADING. Witnesses:

CHAs. T. PAGELsoN, M. W. TURNER.

